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Finding the Fourth Proportional to 117,345.60, 161,929.44 and 67,043.52

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Solution

The fourth proportional to 117,345.60, 161,929.44 and 67,043.52 is: 92,515.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,345.60 : 161,929.44 = 67,043.52 : x
  2. Step 2: Convert to fraction form
    117,345.60/161,929.44 = 67,043.52/x
  3. Step 3: Cross multiply
    117,345.60x = 161,929.44 × 67,043.52
  4. Step 4: Simplify right side
    117,345.60x = 10,856,319,649.23
  5. Step 5: Solve for x
    x = 10,856,319,649.23/117,345.60
  6. Step 6: Final answer
    x = 92,515.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.